This book presents three later works by the German social-democratic thinker and politician Eduard Bernstein, translated into English in full for the first time: Social Democracy and International Politics: Social Democracy and the European Question; League of Nations or League of States; and International Law and International Politics: The Nature, Questions, and Future of International Law. Written at the height of WW1, they address the abrupt collapse of international socialist cooperation after its outbreak, and outline a vision for peace in Europe and beyond. Bernstein argues for an ethical, democratic approach to international relations, governed by a corpus of international law, and safeguarded by an international